pl This question has multiple parts. Work all the parts to get the most points. pi pt The following statements either define or are closely related to the terms periodic law, period, and group. Match the appropriate term to the statement. pe pl pt a The chemical properties of the elements repeat In a regular way as the atomic numbers increase periodic law period pt group or of et The element oxygen is the first member of this arrangement. O periodic law period group This is a vertical arrangement of elements in the periodic table. periodic law period group